Warning: Undefined array key "mm" in /www/wwwroot/www.ai-bt.com/si.php on line 10 Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /www/wwwroot/www.ai-bt.com/si.php on line 10 Variations in unconditioned stimulus processing in unblocking.

Literature DB >> 15839773

Variations in unconditioned stimulus processing in unblocking.

Abstract

Three experiments examined the mechanisms by which downward shifts in reinforcer value influence learning in appetitive unblocking procedures. The downward shift was accomplished by omitting the 2nd of a 2-reinforcer sequence (food-food or food-sucrose). Performance of normal rats was compared with that of rats with lesions of the central nucleus of the amygdala, which are thought to interfere with surprise-induced enhancements of event processing. The results suggested that, in normal rats, omission of the 2nd reinforcer enhanced processing of the 1st reinforcer rather than processing of the conditioned stimuli and that lesions of the central nucleus eliminated this enhancement. The roles of reinforcement error signals in conditioning are discussed.

Entities: Chemical Disease Species

Mesh：

Year: 2005 PMID： 15839773 PMCID： PMC1201525 DOI： 10.1037/0097-7403.31.2.155

Source DB: PubMed Journal: J Exp Psychol Anim Behav Process ISSN： 0097-7403

31 in total

1. Amygdala circuitry in attentional and representational processes.

Authors:
Journal: Trends Cogn Sci Date: 1999-02 Impact factor: 20.229

2. Disruption of decrements in conditioned stimulus processing by selective removal of hippocampal cholinergic input.

Authors: M G Baxter; P C Holland; M Gallagher
Journal: J Neurosci Date: 1997-07-01 Impact factor: 6.167

Review 3. What's elementary about associative learning?

Authors: E A Wasserman; R R Miller
Journal: Annu Rev Psychol Date: 1997 Impact factor: 24.137

4. Excitation and inhibition in unblocking.

Authors: P C Holland
Journal: J Exp Psychol Anim Behav Process Date: 1988-07

5. The orienting response as an index of stimulus associability in rats.

Authors: J A Swan; J M Pearce
Journal: J Exp Psychol Anim Behav Process Date: 1988-07

Review 6. Classical conditioning in animals.

Authors: A Dickinson; N J Mackintosh
Journal: Annu Rev Psychol Date: 1978 Impact factor: 24.137

7. Effects of amygdala central nucleus lesions on blocking and unblocking.

Authors: P C Holland; M Gallagher
Journal: Behav Neurosci Date: 1993-04 Impact factor: 1.912

8. Amygdala central nucleus lesions disrupt increments, but not decrements, in conditioned stimulus processing.

Authors: P C Holland; M Gallagher
Journal: Behav Neurosci Date: 1993-04 Impact factor: 1.912

9. Element pretraining influences the content of appetitive serial compound conditioning in rats.

Authors: P C Holland
Journal: J Exp Psychol Anim Behav Process Date: 1985-07

10. Effects of hippocampal lesions in overshadowing and blocking procedures.

Authors: Peter C Holland; Gregory D Fox
Journal: Behav Neurosci Date: 2003-06 Impact factor: 1.912

16 in total

1. The central amygdala projection to the substantia nigra reflects prediction error information in appetitive conditioning.

Authors: Hongjoo J Lee; Michela Gallagher; Peter C Holland
Journal: Learn Mem Date: 2010-10-01 Impact factor: 2.460

2. The effects of basolateral amygdala lesions on unblocking.

Authors: Stephen E Chang; Michael A McDannald; Daniel S Wheeler; Peter C Holland
Journal: Behav Neurosci Date: 2012-04 Impact factor: 1.912

3. Inactivation of the central but not the basolateral nucleus of the amygdala disrupts learning in response to overexpectation of reward.

Authors: Richard Z Haney; Donna J Calu; Yuji K Takahashi; Brian W Hughes; Geoffrey Schoenbaum
Journal: J Neurosci Date: 2010-02-24 Impact factor: 6.167

Variations in unconditioned stimulus processing in unblocking.

1. Amygdala circuitry in attentional and representational processes.

2. Disruption of decrements in conditioned stimulus processing by selective removal of hippocampal cholinergic input.

Review 3. What's elementary about associative learning?

4. Excitation and inhibition in unblocking.

5. The orienting response as an index of stimulus associability in rats.

Review 6. Classical conditioning in animals.

7. Effects of amygdala central nucleus lesions on blocking and unblocking.

8. Amygdala central nucleus lesions disrupt increments, but not decrements, in conditioned stimulus processing.

9. Element pretraining influences the content of appetitive serial compound conditioning in rats.

10. Effects of hippocampal lesions in overshadowing and blocking procedures.

1. The central amygdala projection to the substantia nigra reflects prediction error information in appetitive conditioning.

2. The effects of basolateral amygdala lesions on unblocking.

3. Inactivation of the central but not the basolateral nucleus of the amygdala disrupts learning in response to overexpectation of reward.

4. Effects of reward timing information on cue associability are mediated by amygdala central nucleus.

5. Effects of amygdala lesions on overexpectation phenomena in food cup approach and autoshaping procedures.

6. Formation of excitatory and inhibitory associations between absent events.

7. Role of amygdala central nucleus in feature negative discriminations.

Review 8. Learning theory: a driving force in understanding orbitofrontal function.

Review 9. Mini-review: Prediction errors, attention and associative learning.

10. Attentional changes in blocking are not a consequence of lateral inhibition.